An automatic stamping die and method based on automobile part machining

Abstract

The application discloses a kind of full-automatic stamping die based on automobile parts processing and method, it is related to sheet metal stamping forming technical field.The present application includes being arranged in the upper punch of processing chamber, and first lower die, second lower die and upper die for stamping parts, further include: moving slide rail, setting in processing chamber, moving slide rail is provided with the push component of push spare part;Stamping unit is arranged in processing chamber, including primary stamping assembly, secondary stamping assembly and blanking assembly.The advantages are that: the present application realizes waste secondary stamping by primary and secondary stamping assembly cooperation, effectively improves sheet utilization, reduces production cost, realizes uninterrupted stamping operation by switching stamping die through turnover structure, improves production efficiency, relies on stop block and bolt linkage to realize feeding synchronism, and completes material classification collection with multiple conveying slide rails, simplifies process, greatly improves equipment automation level.

Description

Technical Field

[0001] This invention relates to the field of sheet metal stamping technology, and in particular to a fully automated stamping die and method for processing automotive parts. Background Technology

[0002] Stamping of automotive parts is a core process in the automotive manufacturing industry chain. Fully automated stamping dies, as key equipment in stamping production, directly determine the production efficiency, processing accuracy, and manufacturing cost of automotive parts. With the rapid development of the new energy vehicle industry, higher demands are being placed on the material utilization rate, continuous production capacity, and automation level of stamping dies.

[0003] For example, a fully automatic stamping device for processing automotive parts, disclosed in CN115570037B, includes two fixed plates arranged in parallel, one above the other. Vertical shafts are fixedly mounted at both ends of the two fixed plates. Two support plates are rotatably mounted on each vertical shaft. A polygonal plate is fixedly mounted at the outer ends of the two support plates. The polygonal plate is coaxial with the vertical shaft. Multiple mold plates are arranged in a circular array along the axis of the polygonal plate. The mold plates are located on the vertical plane of the polygonal plate. Synchronous gears are provided at the upper ends of the two polygonal plates, and the two synchronous gears mesh with each other.

[0004] Existing fully automatic stamping dies can usually only complete a single stamping process. A large amount of punching waste generated during stamping is directly discarded, resulting in generally low sheet metal utilization and high raw material costs. Furthermore, die replacement requires machine shutdown for disassembly and assembly, making continuous production impossible and severely impacting production efficiency.

[0005] For example, in the aforementioned prior art, although the device achieves continuous stamping through the revolution of the annular mold plate, it does not have a waste recycling structure. The punching waste generated during stamping is directly wasted. Furthermore, the mold plate is fixed on the polygonal plate, and the entire assembly still needs to be disassembled to change molds of different specifications. It cannot achieve rapid station switching, and there is still room for improvement in the degree of automation, which has certain limitations.

[0006] Therefore, there is an urgent need to design a fully automated stamping die and method based on automotive parts processing to solve the above problems. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a fully automated stamping die and method for automotive parts processing, solving the problems mentioned in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a fully automatic stamping die for automotive parts processing, comprising a stamping press mounted in the processing chamber, and a first lower die, a second lower die, and an upper die for stamping parts, further comprising: A movable slide rail is installed on the machining chamber, and a pusher component for pushing parts is installed on the movable slide rail; The stamping unit, located in the processing chamber, includes a primary stamping assembly, a secondary stamping assembly, and a blanking assembly; The primary stamping assembly contains two upper dies and a first lower die for stamping the parts, the secondary stamping assembly contains a second lower die for stamping the parts, and the unloading assembly contains several collection boxes for collecting parts and waste.

[0009] Preferably, a controller is fixedly installed on the processing chamber, a PLC controller is fixedly installed on the controller, a control panel is fixedly installed on the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel uses a PLC controller to control the start-up and operation status of the pushing and stamping components.

[0010] Preferably, the pushing component includes a feeding chamber fixedly installed on the processing chamber, the movable slide rail fixedly installed on the processing chamber, the first lower mold slidably connected to the movable slide rail, and a second electric push rod fixedly installed on the movable slide rail, the driving end of the second electric push rod being fixedly connected to the first lower mold; A material conveying slide rail is fixedly installed on the movable slide rail, a slide plate is slidably connected to the material conveying slide rail, a first electric push rod is fixedly installed on the material conveying slide rail, the drive end of the first electric push rod is fixedly connected to the slide plate, the material conveying slide rail is fixedly connected to the feeding chamber, an inclined push plate is slidably connected to the feeding chamber, and a push spring is fixedly connected between the feeding chamber and the inclined push plate. The first lower mold is provided with a fixing mechanism for fixing the parts to be processed on the first lower mold.

[0011] Preferably, the fixing mechanism includes a plurality of first limiting rods fixedly installed on the first lower mold, each first limiting rod is rotatably connected to a stop block, each first limiting rod is fixedly connected to a torsion spring, each torsion spring is located inside the stop block, and one end of the torsion spring is fixedly connected to the stop block; The first lower mold has several fixing slots inside, each fixing slot is slidably connected with a pin, each stop block has an insertion hole, and the insertion hole is connected to the pin. A first electromagnet is fixedly installed inside each fixing slot. A first armature is fixedly installed at one end of each pin inside the fixing slot. A first return spring is sleeved on each pin, and the two ends of the first return spring are fixedly connected to the first armature and the fixing slot, respectively.

[0012] Preferably, the primary stamping assembly includes a support frame fixedly installed inside the processing chamber, a rotating rod rotatably connected to the support frame, a first rotating frame fixedly installed on the rotating rod, a tilting motor fixedly installed on the support frame, the drive end of the tilting motor fixedly connected to one end of the rotating rod, both upper dies being disposed on the first rotating frame, each upper die having two second magnetic blocks fixedly installed, and a plurality of first magnetic blocks fixedly installed on the first rotating frame, each first magnetic block being magnetically attracted to a corresponding second magnetic block; A connecting block is fixedly installed on the output end of the stamping machine. Several slots are opened on the connecting block. Several spring telescopic rods are fixedly installed on each upper mold. A pressure plate is fixedly installed on one end of each spring telescopic rod. The upper mold is equipped with a connecting mechanism inside.

[0013] Preferably, the connecting mechanism includes several sliding grooves formed inside the upper mold, each sliding groove is fixedly installed with a second limiting rod, each second limiting rod is fitted with a second return spring, every two second limiting rods are slidably connected with a second armature, each second return spring is fixedly connected at both ends to the corresponding second armature and the sliding groove, each second armature is inserted into the slot, and several second electromagnets are fixedly installed on the first rotating frame, each second electromagnet having several slots for inserting the second armature.

[0014] Preferably, the secondary stamping assembly includes an electric hydraulic cylinder fixedly installed inside the processing chamber, the second lower die fixedly installed on the output end of the electric hydraulic cylinder, an air pump fixedly installed inside the processing chamber, and a three-way solenoid valve fixedly installed at the air outlet of the air pump. The second lower mold has an adsorption port for adsorbing parts, and a telescopic air pipe is fixedly connected to the adsorption port. The telescopic air pipe is fixedly connected to a three-way solenoid valve. The rotating rod is equipped with a transfer mechanism.

[0015] Preferably, the transfer mechanism includes a second rotating frame fixedly mounted on a rotating rod, a third electric telescopic rod fixedly mounted on the second rotating frame, an adsorption block fixedly mounted on the driving end of the third electric telescopic rod, a rotating air pipe connected to the bearing on the three-way solenoid valve, and the rotating air pipe and the adsorption block being connected by a flexible hose.

[0016] Preferably, the feeding assembly includes several guide rails formed on the processing chamber, each of the collection boxes is slidably connected to the guide rails, a second conveying slide rail is fixedly installed on the moving slide rail, a first conveying slide rail is fixedly installed on the processing chamber, a third conveying slide rail is fixedly installed on the second lower mold, and the discharge ports of the first, second and third conveying slide rails are all located on the corresponding collection boxes.

[0017] A fully automated stamping die and method for automotive parts processing, used in the aforementioned fully automated stamping die for automotive parts processing, includes the following steps: S1. The metal sheet to be processed is fed into the feeding area and pushed to the first lower mold by the pushing component to complete the positioning. S2. Start the stamping machine and drive the upper die downward to cooperate with the first lower die to complete one stamping of the part; S3. During the first stamping operation, the secondary stamping component drives the second lower die to move upward to receive the waste generated during stamping. S4. The stamping assembly switches to another set of upper dies to the working station below the stamping machine; S5. The stamping press drives the upper die to move downwards, cooperating with the second lower die to complete the secondary stamping of the scrap material; S6. The finished parts and stamping waste are transported to the corresponding collection boxes for collection by the feeding assembly.

[0018] This invention provides a fully automated stamping die and method for processing automotive parts. It offers the following advantages: 1. When stamping automotive parts, this stamping die, through the cooperation of the primary stamping assembly and the secondary stamping assembly, can complete the stamping of the main part using the first die, while the second die receives the punching waste and performs secondary stamping, transforming the waste into usable parts, greatly improving material utilization and reducing production costs.

[0019] 2. When stamping automotive parts, this stamping die, through the cooperation of the flipping motor and the first rotating frame, can drive the two sets of upper dies to quickly switch positions without stopping the machine to disassemble and replace the dies, thus realizing continuous and uninterrupted stamping operations, effectively shortening the production cycle and significantly improving overall production efficiency.

[0020] 3. When stamping automotive parts, this stamping die uses the linkage positioning of the stop block and the pin to push the sheet metal to be processed to the loading station, and at the same time, the parts formed in the previous stamping can be pushed into the first conveyor slide rail, so as to realize the simultaneous loading and unloading, eliminating the separate unloading process and making the equipment more interconnected.

[0021] 4. When stamping automotive parts, this stamping die can automatically classify, transport, and collect the formed parts and stamping waste through the cooperation of the first conveying slide rail, the second conveying slide rail, the third conveying slide rail and the collection box. No manual sorting is required, which simplifies the production process and improves the automation level of the equipment.

[0022] In summary, this invention achieves secondary stamping of waste materials through the cooperation of primary and secondary stamping components, effectively improving the utilization rate of sheet metal and reducing production costs. By switching stamping dies through a flipping structure, uninterrupted stamping operations are achieved, improving production efficiency. The linkage between the stop block and the pin enables synchronous loading and unloading, and the combination of multiple sets of conveyor slides completes the classification and collection of materials, simplifying the process and significantly improving the automation level of the equipment.

[0023] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the structure of a fully automatic stamping die based on automotive parts processing proposed in this invention; Figure 2 for Figure 1 A schematic diagram of the structure after rotation at a certain angle; Figure 3 for Figure 2 Schematic diagram of the internal structure of the intermediate machining room; Figure 4 for Figure 3 A schematic diagram of the structure after rotation at a certain angle; Figure 5 for Figure 4 A schematic diagram of the push component structure; Figure 6 for Figure 5 Schematic diagram of the internal structure of the central feeding chamber; Figure 7 for Figure 5 Schematic diagram of the structure of the first lower mold; Figure 8 for Figure 7 Schematic diagram of the internal structure of the first lower mold; Figure 9 for Figure 8 Enlarged view of the node at point A in the middle; Figure 10 for Figure 4 A schematic diagram of the structure of the first rotating frame; Figure 11 for Figure 10 Schematic diagram of the upper and middle molds; Figure 12 for Figure 11 Internal structure diagram of the upper and middle molds; Figure 13 for Figure 4 Schematic diagram of the structure of the feeding and unloading assembly; Figure 14 for Figure 13 A schematic diagram of the transfer mechanism.

[0025] In the diagram: 1. Machining chamber; 2. Controller; 3. Press; 4. Moving slide rail; 5. First lower die; 6. Material conveying slide rail; 7. Feeding chamber; 8. Collection box; 9. Inclined push plate; 10. First electric push rod; 11. First limit rod; 12. Stop block; 13. Torsion spring; 14. Fixing groove; 15. Pin; 16. First return spring; 17. First armature; 18. First electromagnet; 19. Second electric push rod; 20. Support frame; 21. Rotating rod; 22. First rotating frame; 23. First magnet; 24. Second magnet; 25. 26. Electromagnet; 27. Slide rail; 28. Second limit rod; 29. ​​Second return spring; 30. Second armature; 31. First conveying slide rail; 32. Connecting block; 33. Slot; 34. Pressure plate; 35. Spring telescopic rod; 36. Upper mold; 37. Electric hydraulic cylinder; 38. Second lower mold; 39. Air pump; 40. Three-way solenoid valve; 41. Telescopic air pipe; 42. Second rotating frame; 43. Third electric telescopic rod; 44. Adsorption block; 45. Rotating air pipe; 46. Tilting motor; 47. Second conveying slide rail; 48. Third conveying slide rail. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0027] Example 1: Refer to Figures 1-4 A fully automatic stamping die for automotive parts processing includes a stamping machine 3 installed in a processing chamber 1, and a first lower die 5, a second lower die 37, and an upper die 35 for stamping parts. The processing chamber 1 provides a closed protection and mounting base for the entire device, withstands all the impact forces generated during the stamping process, prevents equipment deformation, and forms a closed working space to block stamping waste from splashing, avoid personnel injury, and improve production safety. The stamping machine 3 provides stable power output for primary and secondary stamping, driving the upper die 35 to move downward to complete the stamping process. The first lower die 5 works with the upper die 35 to complete the first stamping of the main part. At the same time, the punching waste is conveyed through the blanking hole to the second lower die 37 below. The second lower die 37 is used to receive the punching waste generated by the first stamping and works with the upper die 35 to complete the second stamping of the waste, turning the waste into usable small-sized parts. There are two sets of upper dies 35, corresponding to the first stamping and the second stamping respectively. The upper die 35 works with the first lower die 5 and the second lower die 37 to complete the stamping of the main part and the secondary part respectively. The two sets of dies can be quickly switched without stopping the machine for disassembly and assembly, realizing continuous and uninterrupted production.

[0028] This stamping die also includes: The movable slide rail 4 is set on the processing chamber 1. The movable slide rail 4 is equipped with a push component for pushing parts. The push component is used to automatically push the parts to be processed to the designated position of the first lower mold 5, so as to realize the automated feeding of the sheet metal to be processed without manual feeding, reducing the labor intensity of manual labor, while ensuring the consistency of the feeding position, and providing a basic guarantee for the accuracy of subsequent stamping operations. The stamping unit is located in the processing chamber 1 and includes a primary stamping assembly, a secondary stamping assembly, and a blanking assembly. One of the stamping components is equipped with two upper dies 35 and a first lower die 5 for stamping parts. The stamping component completes the stamping of the main parts in one stamping by the mold closing cooperation of the upper dies 35 and the first lower die 5. By quickly switching between the two sets of upper dies 35, continuous stamping operation can be achieved without stopping the machine for disassembly and assembly, which effectively shortens the production cycle and improves the continuous production capacity of the equipment. The secondary stamping assembly is equipped with a second lower die 37 for stamping parts. The secondary stamping assembly is used to receive the punching waste generated by the primary stamping and cooperates with the upper die 35 to complete the secondary stamping forming of the waste, turning the originally discarded waste into usable small-sized parts, realizing in-mold recycling and reuse of waste, greatly improving the utilization rate of sheet material and reducing production costs. The unloading assembly is equipped with several collection boxes 8 for collecting parts and waste. The unloading assembly is used to collect finished parts and stamping waste generated by primary and secondary stamping, realizing the classified collection of finished products and waste materials. It eliminates the need for manual sorting, simplifies the production process, improves the degree of production automation, and ensures that the production site is clean and orderly, which facilitates subsequent material transfer and processing.

[0029] A controller 2 is fixedly installed on the processing chamber 1, a PLC controller is fixedly installed on the controller 2, a control panel is fixedly installed on the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel uses a PLC controller to control the start-up and operation status of the pushing and stamping components.

[0030] Example 2: Refer to Figures 4-12 The difference between this embodiment and embodiment one is that the pushing component includes a feeding chamber 7 fixedly installed on the processing chamber 1. The internal dimensions of the feeding chamber 7 match the dimensions of the sheet metal to be processed. A feeding port is opened at the top and a discharging port is set at the bottom. The feeding chamber 7 is used to stack and store the metal sheet metal to be processed, eliminating the need for frequent manual feeding and improving production continuity. The movable slide rail 4 is fixedly installed on the processing chamber 1. The first lower mold 5 is slidably connected to the movable slide rail 4. The second electric push rod 19 is fixedly installed on the movable slide rail 4. The driving end of the second electric push rod 19 is fixedly connected to the first lower mold 5. The movable slide rail 4 is used to provide high-precision linear motion guidance for the first lower mold 5, so as to realize the reciprocating movement of the first lower mold 5 between the feeding station and the stamping station. The second electric push rod 19 is used to drive the first lower mold 5 to slide along the movable slide rail 4, and quickly switch between the feeding station and the stamping station. A material conveying slide rail 6 is fixedly installed on the movable slide rail 4. A slide plate is slidably connected to the material conveying slide rail 6. A first electric push rod 10 is fixedly installed on the material conveying slide rail 6. The drive end of the first electric push rod 10 is fixedly connected to the slide plate. The material conveying slide rail 6 is fixedly connected to the feeding chamber 7. The conveying slide rail 6 is used to guide the sheet material, ensuring that the sheet material is conveyed in a straight line to the first lower mold 5. The first electric push rod 10 is used to drive the slide plate to slide along the conveying slide rail 6, accurately pushing the single sheet material sent out by the feeding chamber 7 to the positioning position of the first lower mold 5. A rubber baffle is vertically fixed on the side of the slide plate facing the feeding chamber 7. The height of the rubber baffle matches the height of the discharge port of the feeding chamber 7 and moves back and forth synchronously with the slide plate. The slide plate is used to push the single sheet material along the conveying slide rail 6 to the first lower mold 5. During the pushing process, the rubber baffle simultaneously blocks the discharge port of the feeding chamber 7, preventing the next sheet material in the feeding chamber 7 from falling into the conveying slide rail 6 before the pushing action is completed, thus avoiding jamming. An inclined push plate 9 is slidably connected inside the feeding chamber 7, and a push spring is fixedly connected between the feeding chamber 7 and the inclined push plate 9. The bottom of the feeding chamber 7 has an inclined discharge port adapted to the specifications of the sheet material facing the conveying slide rail 6. Multiple conveying rollers are evenly distributed at the connection between the inclined discharge port and the conveying slide rail 6. Under the continuous pushing force of the push spring, the inclined push plate 9 pushes the stacked sheet material along the inner wall of the feeding chamber 7 towards the inclined discharge port. The sheet material slides naturally into the conveying roller group through the inclined discharge port. The rolling conveying of the conveying rollers greatly reduces the friction of the sheet material movement, thus avoiding the sheet material jamming at the source. The conveying rollers smoothly convey the sheet material to the inlet of the conveying slide rail 6, ensuring that only one sheet material is delivered at a time, realizing continuous automatic supply of sheet material without the need for manual pushing of each sheet. In a further embodiment, the first lower mold 5 is provided with a fixing mechanism for fixing the parts to be processed on the first lower mold 5. The fixing mechanism includes a plurality of first limiting rods 11 fixedly installed on the first lower mold 5. Each first limiting rod 11 is rotatably connected to a stop block 12. Each first limiting rod 11 is fixedly connected to a torsion spring 13. Each torsion spring 13 is located inside the stop block 12, and one end of the torsion spring 13 is fixedly connected to the stop block 12. The first limiting rod 11 serves as the rotation axis of the stop 12, providing support for the stop 12. The stop 12 rotates in conjunction with the first limiting rod 11, enabling simultaneous loading and unloading, eliminating the need for a separate unloading mechanism, making the equipment structure more compact and improving production efficiency. The torsion spring 13 is used to provide reset torque for the stop 12. When the plate is pushed into place, it pushes the stop 12 to automatically reset. When the sheet material to be processed is pushed, the sheet material pushes the stop block 12 to rotate around the first limit rod 11. At the same time, the sheet material pushes the main part formed in the previous stamping forward into the first conveying slide rail 30. After the sheet material is pushed into place, the stop block 12 is reset under the action of the torsion spring 13 and cooperates with the pin 15 to clamp and position the sheet material. The two stops 12 on the feeding side are shorter than the two stops 12 on the discharging side to avoid the stop blocks 12 being the same length. If the stop block 12 on the feeding side is the same length as the stop block 12 on the discharging side, the stop block 12 on the feeding side will block the reset movement of the sheet material, causing the sheet material to not be able to return to the positioning reference position completely, which will affect the subsequent clamping and positioning accuracy and stamping quality.

[0031] The first lower mold 5 has several fixed slots 14 inside, each fixed slot 14 is slidably connected with a pin 15, each stop block 12 has a hole, and the hole is connected to the pin 15. A first electromagnet 18 is fixedly installed inside each fixed slot 14. A first armature 17 is fixedly installed at one end of each pin 15 inside the fixed slot 14. A first return spring 16 is sleeved on each pin 15, and the two ends of the first return spring 16 are fixedly connected to the first armature 17 and the fixed slot 14 respectively. The fixing groove 14 is used to accommodate the mounting pin 15, the first return spring 16, the first armature 17 and the first electromagnet 18, and to provide guidance and limit for the sliding movement of the pin 15. When the first electromagnet 18 is energized, it generates magnetic force, attracts the first armature 17 and drives the pin 15 to retract, releasing the lock on the stop block 12. At the same time, it stretches the first return spring 16 to store energy. After the first electromagnet 18 is de-energized, the magnetic force disappears. The first return spring 16, after storing energy, pushes the first armature 17 and the pin 15 to extend, so that the pin 15 is inserted into the insertion hole of the stop block 12 to lock the stop block 12, thereby firmly clamping and positioning the sheet metal on the first lower mold 5.

[0032] In a further embodiment, the primary stamping assembly includes a support frame 20 fixedly installed inside the processing chamber 1. A rotating rod 21 is rotatably connected to the support frame 20. The support frame 20 is used to support the rotating rod 21 and the first rotating frame 22 and bear the load during the mold switching process. The first rotating frame 22 is fixedly installed on the rotating rod 21. A flip motor 45 is fixedly installed on the support frame 20. The drive end of the flip motor 45 is fixedly connected to one end of the rotating rod 21. Two upper molds 35 are both set on the first rotating frame 22. Two second magnetic blocks 24 are fixedly installed on each upper mold 35. A plurality of first magnetic blocks 23 are fixedly installed on the first rotating frame 22, and each first magnetic block 23 is magnetically attracted to the corresponding second magnetic block 24. The flip motor 45 is used to drive the rotating rod 21 to rotate, which in turn drives the first rotating frame 22 to rotate 180°, thus completing the work position switching of the upper mold 35. The first rotating frame 22 is used to install and fix the two sets of upper molds 35. Under the drive of the rotating rod 21, it rotates 180° to realize the work position switching of the two sets of upper molds 35. When the upper mold 35 is not connected to the stamping machine 3, the first magnetic block 23 and the second magnetic block 24 are magnetically attracted to the second magnetic block 24 to temporarily fix the upper mold 35 on the first rotating frame 22 to prevent the upper mold 35 from falling off. A connecting block 31 is fixedly installed on the output end of the stamping machine 3. Several slots 32 are opened on the connecting block 31. Several spring telescopic rods 34 are fixedly installed on each upper mold 35. A pressure plate 33 is fixedly installed on one end of each spring telescopic rod 34. The connecting block 31 is a connecting component between the press 3 and the upper die 35, which transmits the power of the press 3 to the upper die 35. The slot 32 cooperates with the second armature 29 to realize the quick connection and separation of the upper die 35 and the press 3. This structure is reliable in connection, easy to disassemble, requires no tools, and greatly shortens the die changeover time. The pressure plate 33 is used to pre-press the sheet metal before stamping, pressing the sheet metal flat on the first lower die 5 to prevent the sheet metal from wrinkling and shifting. The spring telescopic rod 34 is used to pre-press the sheet metal first when the upper die 35 is driven down by the stamping press 3. The spring telescopic rod 34 is compressed to buffer the upper die 35.

[0033] In a further embodiment, a connecting mechanism is provided inside the upper mold 35. The connecting mechanism includes a plurality of sliding grooves 26 opened inside the upper mold 35. A second limiting rod 27 is fixedly installed on each sliding groove 26. A second return spring 28 is sleeved on each second limiting rod 27. A second armature 29 is slidably connected to every two second limiting rods 27. The two ends of each second return spring 28 are respectively fixedly connected to the corresponding second armature 29 and the sliding groove 26. Each second armature 29 is inserted into the slot 32. A plurality of second electromagnets 25 are fixedly installed on the first rotating frame 22. A plurality of slots for inserting the second armature 29 are opened in each second electromagnet 25. The slide groove 26 is used to accommodate and install the second limiting rod 27, the second return spring 28 and the second armature 29. The second limiting rod 27 provides a sliding guide for the second armature 29 and limits the sliding direction and stroke of the second armature 29. The second return spring 28 is used to push the second armature 29 outward so that it can be inserted into the slot 32 of the connecting block 31, thereby achieving a locking connection between the upper mold 35 and the press 3. When the second electromagnet 25 is energized and generates a magnetic attraction, it attracts the second armature 29 to retract inward and disengage from the slot 32. At the same time, the second armature 29 is inserted into the slot of the second electromagnet 25, fixing the upper mold 35 on the first rotating frame 22, forming a double limiting fixation, which prevents the upper mold 35 from loosening or falling off during the rotation of the first rotating frame 22. At this time, the second return spring 28 is compressed and stored energy, preparing for subsequent re-insertion and reset. Example 3: Refer to Figures 12-14 The difference between this embodiment and embodiment two is that the secondary stamping assembly includes an electric hydraulic cylinder 36 fixedly installed inside the processing chamber 1, and a second lower die 37 fixedly installed on the output end of the electric hydraulic cylinder 36. The electric hydraulic cylinder 36 is used to drive the second lower die 37 to move up and down. During the first stamping, the second lower die 37 is driven to move up to below the first lower die 5 to receive the punching waste. During the secondary stamping, the second lower die 37 is driven to move up to the stamping station to cooperate with the upper die 35 to complete the secondary stamping. An air pump 38 is fixedly installed in the processing chamber 1. A three-way solenoid valve 39 is fixedly installed at the air outlet of the air pump 38. The air pump 38 is used to provide a stable air source and generate negative pressure to adsorb waste materials. The three-way solenoid valve 39 is used to control the opening and closing and direction of the air path and switch the negative pressure and positive pressure states of the telescopic air pipe 40 and the rotating air pipe 44. The second mold 37 has an adsorption port for adsorbing parts. A telescopic air pipe 40 is fixedly connected to the adsorption port, and the telescopic air pipe 40 is fixedly connected to the three-way solenoid valve 39. The telescopic air tube 40 is used to transmit the negative pressure generated by the air pump 38 to the suction port of the second lower mold 37 to achieve the adsorption of waste materials. The telescopic air tube 40 can freely extend and retract with the up and down movement of the second lower mold 37 without pulling or breaking, ensuring unobstructed air passage.

[0034] In a further embodiment, a transfer mechanism is provided on the rotating rod 21. The transfer mechanism includes a second rotating frame 41 fixedly installed on the rotating rod 21. A third electric telescopic rod 42 is fixedly installed on the second rotating frame 41. An adsorption block 43 is fixedly installed on the driving end of the third electric telescopic rod 42. A rotating air pipe 44 is connected to the bearing on the three-way solenoid valve 39. The rotating air pipe 44 and the adsorption block 43 are connected by a flexible hose. The second rotating frame 41 is used to install the third electric telescopic rod 42 and the adsorption block 43. It rotates synchronously with the rotating rod 21, driving the adsorption block 43 to move above the waste. The third electric telescopic rod 42 is used to drive the adsorption block 43 to rise and fall, completing the adsorption and release of waste. The adsorption block 43 generates suction under negative pressure, adsorbing the waste generated by the first stamping. Under positive pressure, it blows out airflow to blow the waste off the second lower mold 37. The rotating air pipe 44 is used to transmit the air pressure generated by the air pump 38 to the adsorption block 43 to realize the adsorption and release of waste.

[0035] In a further embodiment, the feeding assembly includes several guide rails opened on the processing chamber 1, each collection box 8 is slidably connected to the guide rail, a second conveying slide rail 46 is fixedly installed on the moving slide rail 4, a first conveying slide rail 30 is fixedly installed on the processing chamber 1, a third conveying slide rail 47 is fixedly installed on the second lower mold 37, and the discharge ports of the first conveying slide rail 30, the second conveying slide rail 46 and the third conveying slide rail 47 are all located on the corresponding collection box 8; The second conveyor rail 46 is used to convey the main parts formed by one stamping, the first conveyor rail 30 is used to convey the parts formed by two stampings, so that the material automatically slides into the corresponding collection box 8, and the main parts are automatically slid into the corresponding collection box 8 by gravity. The third conveyor rail 47 is used to convey the scrap material remaining on the first lower mold 5, so that the scrap material automatically slides into the corresponding collection box 8.

[0036] The specific working principle of this stamping die is as follows: Before processing, the first lower mold 5, driven by the second electric push rod 19, remains at the feeding station of the moving slide rail 4. The first electromagnet 18 is energized to attract the first armature 17, causing the pin 15 to retract. After the operator stacks the metal sheet to be processed into the feeding chamber 7, the push spring continuously pushes the inclined push plate 9, pushing the nearest sheet to the inlet of the conveying slide rail 6. The controller 2 then issues a feeding command, and the first electric push rod 10 drives the slide plate to move along the conveying slide rail 6 toward the first lower mold 5. During this process, the slide plate moves toward the feeding chamber 7. The rubber baffle on the side moves synchronously with the slide plate, completely blocking the discharge port of the feeding chamber 7, preventing the next piece of sheet material from falling into the conveying slide rail 6 in advance and causing jamming. At the same time, the slide plate pushes the sheet material to be processed into the first lower mold 5. When the sheet material to be processed enters the first lower mold 5, the front end of the sheet material pushes the stop block 12 to rotate around the first limit rod 11. The sheet material to be processed pushes the main part that was stamped in the previous stamping forward, so that it falls into the first conveying slide rail 30 and slides into the corresponding collection box 8 by gravity, thus realizing the synchronous completion of loading and unloading. After the sheet material is pushed into place, the first electric push rod 10 drives the slide plate to reset, the rubber baffle leaves the discharge port, and the next sheet material automatically enters the conveying slide rail 6 under the action of the push spring to wait for the next feeding. After the sheet metal is fully inserted into the positioning area of ​​the first lower mold 5, the controller 2 controls the first electromagnet 18 to be de-energized. After the magnetic force disappears, the first reset spring 16, which has been stretched and stored in energy, releases energy and pushes the first armature 17 to drive the pin 15 to slide outward along the fixed groove 14. The conical guide head of the pin 15 is precisely inserted into the insertion hole on the side of the stop block 12, locking the stop block 12 in a vertical position. The four stops 12 simultaneously clamp and position the sheet metal from all sides. After clamping is completed, the second electric push rod 19 drives the first lower mold 5 to move quickly along the sliding rail 4 to the stamping station directly below the stamping machine 3. Then the controller 2 issues a stamping command, and the stamping machine 3 drives the connecting block 31 to move downward, moving the connecting block 31 into the upper mold 35. At this time, the second return spring 28 inside the upper mold 35 pushes the second armature 29 to extend outward, so that the second armature 29 is inserted into the slot 32 of the connecting block 31 at the output end of the stamping machine 3, completing the precise mechanical locking docking between the upper mold 35 and the output end of the stamping machine 3. Subsequently, controller 2 issues a stamping command, and the stamping machine 3 drives the upper die 35 to descend. During the descent of the upper die 35, the pressure plate 33 first contacts the surface of the sheet metal, and the spring telescopic rod 34 is compressed to generate uniform pre-pressure, pressing the sheet metal tightly onto the first lower die 5 to prevent the sheet metal from shifting during the stamping process. The upper die 35 continues to descend and closes with the first lower die 5 to complete the stamping of the main part. The punching waste generated by the stamping falls downward through the blanking hole on the first lower die 5. At the same time, the controller 2 controls the electric hydraulic cylinder 36 to drive the second lower mold 37 to move up quickly to below the first lower mold 5. The air pump 38 starts synchronously, and the three-way solenoid valve 39 switches to the air path of the telescopic air pipe 40. A negative pressure is generated at the suction port of the second lower mold 37, which firmly adsorbs the falling punching waste material onto the surface of the second lower mold 37, preventing the waste material from scattering or shifting. After one stamping is completed, the stamping machine 3 drives the upper mold 35 back to the highest point. The controller 2 then controls the corresponding second electromagnet 25 to be energized to generate a strong magnetic force, which attracts the second armature 29 to slide inward along the second limit rod 27, so that the second armature 29 is disengaged from the slot 32 on the connecting block 31, realizing the separation of the upper mold 35 from the stamping machine 3. At the same time, the second armature 29 is inserted into the slot on the end face of the second electromagnet 25, forming a double fixation with the first magnetic block 23 and the second magnetic block 24, ensuring that the upper mold 35 will not loosen or fall off during the rotation of the first rotating frame 22. After the upper mold 35 is fixed, the flipping motor 45 starts and drives the rotating rod 21 to drive the first rotating frame 22 to rotate precisely 180°, switching the upper mold 35 used for secondary stamping to the bottom of the stamping machine 3. At this time, the stamping machine 3 drives the connecting block 31 to move towards the switched upper mold 35 again. The controller 2 controls the second electromagnet 25 to be de-energized. After the magnetic force disappears, the second return spring 28 pushes the second armature 29 to extend outward and precisely insert into the slot 32 of the connecting block 31, completing the locking connection between the new upper mold 35 and the stamping machine 3. After the mold switching is completed, the press 3 drives the upper mold 35 to move downward again, and closes with the second lower mold 37, stamping the punching waste material adsorbed on the second lower mold 37 into small usable parts; After the secondary stamping is completed, the stamping machine 3 returns to its highest point. At this time, the waste material generated by the secondary stamping falls from the second lower die 37. The fallen material slides along the third conveyor slide rail 47 into the corresponding collection box 8. At this time, the flipping motor 45 drives the rotating rod 21 to rotate 90° again, rotating the adsorption block 43 above the second lower die 37. The third electric telescopic rod 42 extends and drives the adsorption block 43 to move down. At the same time, the three-way solenoid valve 39 switches to the air path of the rotating air pipe 44, so that the adsorption block 43 generates negative pressure, which firmly adsorbs the secondary stamping parts formed on the second lower die 37 onto the adsorption block 43. Then, the rotating rod 21 drives the adsorption block 43 and the adsorbed parts to move together to the top of the first conveyor slide rail 30. At this time, the air pump 38 is turned off to release the negative pressure adsorption. The secondary stamping parts then fall naturally onto the first conveyor slide rail 30 and slide along the slide rail into the corresponding collection box 8 to complete the collection.

[0037] This invention also provides a fully automatic stamping die and method for automotive parts processing, used in the aforementioned fully automatic stamping die for automotive parts processing, comprising the following steps: S1. The metal sheet to be processed is fed into the feeding area and pushed to the first lower mold 5 by the pushing component to complete the positioning. S2. Start the stamping machine 3 and drive the upper mold 35 to move downward, cooperating with the first lower mold 5 to complete one stamping of the part; S3. During the first stamping operation, the secondary stamping component drives the second lower die 37 to move upward to receive the waste generated during stamping. S4. The stamping assembly switches to another set of upper dies 35 to the working station below the stamping machine 3; S5, the upper die 35 of the stamping machine 3 moves downward and cooperates with the second lower die 37 to complete the secondary stamping of the scrap material; S6. The finished parts and stamping waste are respectively transported to the corresponding collection box 8 for collection by the feeding component.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fully automatic stamping die for automotive parts processing, comprising an upper stamping press (3) disposed in a processing chamber (1), and a first lower die (5), a second lower die (37), and an upper die (35) for stamping parts, characterized in that, Also includes: A movable slide rail (4) is installed on the processing chamber (1), and a pusher assembly for pushing parts is installed on the movable slide rail (4); The stamping unit is located in the processing chamber (1) and includes a primary stamping assembly, a secondary stamping assembly and a blanking assembly; The primary stamping assembly is equipped with two upper dies (35) and a first lower die (5) for stamping parts, the secondary stamping assembly is equipped with a second lower die (37) for stamping parts, and the unloading assembly is equipped with several collection boxes (8) for collecting parts and waste.

2. The fully automatic stamping die for automotive parts processing according to claim 1, characterized in that, A controller (2) is fixedly installed on the processing room (1), a PLC controller is fixedly installed on the controller (2), a control panel is fixedly installed on the PLC controller, and the control panel and the PLC controller are electrically connected. The control panel uses a PLC controller to control the start-up and operation status of the pushing and stamping components.

3. The fully automatic stamping die based on automotive parts processing according to claim 1, characterized in that, The pushing component includes a feeding chamber (7) fixedly installed on the processing chamber (1), a movable slide rail (4) fixedly installed on the processing chamber (1), a first lower mold (5) slidably connected on the movable slide rail (4), a second electric push rod (19) fixedly installed on the movable slide rail (4), and the driving end of the second electric push rod (19) fixedly connected to the first lower mold (5). A material conveying slide rail (6) is fixedly installed on the movable slide rail (4). A slide plate is slidably connected to the material conveying slide rail (6). A first electric push rod (10) is fixedly installed on the material conveying slide rail (6). The driving end of the first electric push rod (10) is fixedly connected to the slide plate. The material conveying slide rail (6) is fixedly connected to the feeding chamber (7). An inclined push plate (9) is slidably connected inside the feeding chamber (7). A push spring is fixedly connected between the feeding chamber (7) and the inclined push plate (9). The first lower mold (5) is provided with a fixing mechanism for fixing the parts to be processed on the first lower mold (5).

4. The fully automatic stamping die based on automotive parts processing according to claim 3, characterized in that, The fixing mechanism includes a plurality of first limiting rods (11) fixedly installed on the first lower mold (5). Each first limiting rod (11) is rotatably connected to a stop block (12). Each first limiting rod (11) is fixedly connected to a torsion spring (13). Each torsion spring (13) is located inside the stop block (12), and one end of the torsion spring (13) is fixedly connected to the stop block (12). The first lower mold (5) has several fixed slots (14) inside. Each fixed slot (14) is slidably connected with a pin (15). Each stop block (12) has a hole, and the hole is connected to the pin (15). Each fixed slot (14) is fixedly installed with a first electromagnet (18). Each pin (15) has a first armature (17) fixedly installed at one end inside the fixed slot (14). Each pin (15) is fitted with a first reset spring (16), and the two ends of the first reset spring (16) are fixedly connected to the first armature (17) and the fixed slot (14) respectively.

5. A fully automatic stamping die for automotive parts processing according to claim 4, characterized in that, The primary stamping assembly includes a support frame (20) fixedly installed inside the processing chamber (1). A rotating rod (21) is rotatably connected to the support frame (20). A first rotating frame (22) is fixedly installed on the rotating rod (21). A flip motor (45) is fixedly installed on the support frame (20). The driving end of the flip motor (45) is fixedly connected to one end of the rotating rod (21). The two upper dies (35) are both set on the first rotating frame (22). Two second magnetic blocks (24) are fixedly installed on each upper die (35). Several first magnetic blocks (23) are fixedly installed on the first rotating frame (22), and each first magnetic block (23) is magnetically attracted to the corresponding second magnetic block (24). A connecting block (31) is fixedly installed on the output end of the stamping machine (3). Several slots (32) are opened on the connecting block (31). Several spring telescopic rods (34) are fixedly installed on each upper mold (35). A pressure plate (33) is fixedly installed on one end of each spring telescopic rod (34). The upper mold (35) is equipped with a connecting mechanism inside.

6. A fully automatic stamping die for automotive parts processing according to claim 5, characterized in that, The connecting mechanism includes several sliding grooves (26) opened inside the upper mold (35). A second limiting rod (27) is fixedly installed on each sliding groove (26). A second return spring (28) is sleeved on each second limiting rod (27). A second armature (29) is slidably connected to every two second limiting rods (27). The two ends of each second return spring (28) are fixedly connected to the corresponding second armature (29) and the sliding groove (26). Each second armature (29) is inserted into the slot (32). Several second electromagnets (25) are fixedly installed on the first rotating frame (22). Several slots for inserting the second armature (29) are opened in each second electromagnet (25).

7. A fully automatic stamping die for automotive parts processing according to claim 6, characterized in that, The secondary stamping assembly includes an electric hydraulic cylinder (36) fixedly installed inside the processing chamber (1), the second lower mold (37) fixedly installed on the output end of the electric hydraulic cylinder (36), an air pump (38) fixedly installed inside the processing chamber (1), and a three-way solenoid valve (39) fixedly installed at the air outlet of the air pump (38). The second lower mold (37) is provided with an adsorption port for adsorbing parts. A telescopic air pipe (40) is fixedly connected to the adsorption port. The telescopic air pipe (40) is fixedly connected to the three-way solenoid valve (39). A transfer mechanism is provided on the rotating rod (21).

8. A fully automatic stamping die for automotive parts processing according to claim 7, characterized in that, The transfer mechanism includes a second rotating frame (41) fixedly mounted on a rotating rod (21), a third electric telescopic rod (42) fixedly mounted on the second rotating frame (41), an adsorption block (43) fixedly mounted on the driving end of the third electric telescopic rod (42), a rotating air pipe (44) connected to the bearing on the three-way solenoid valve (39), and the rotating air pipe (44) and the adsorption block (43) connected by a flexible hose.

9. A fully automatic stamping die for automotive parts processing according to claim 8, characterized in that, The feeding assembly includes several guide rails opened on the processing chamber (1), each of the collection boxes (8) is slidably connected to the guide rails, a second conveying slide rail (46) is fixedly installed on the moving slide rail (4), a first conveying slide rail (30) is fixedly installed on the processing chamber (1), and a third conveying slide rail (47) is fixedly installed on the second lower mold (37). The discharge ports of the first conveying slide rail (30), the second conveying slide rail (46) and the third conveying slide rail (47) are all located on the corresponding collection boxes (8).

10. A fully automatic stamping die and method for automotive parts processing, used in any one of claims 1-9, characterized in that, Includes the following steps: S1. The metal sheet to be processed is fed into the feeding area and pushed to the first lower mold (5) by the pushing component to complete the positioning; S2. Start the stamping machine (3) to drive the upper mold (35) downward, and cooperate with the first lower mold (5) to complete the stamping of the parts once; S3. During the first stamping operation, the second stamping component drives the second lower die (37) to move upward to receive the waste generated by stamping. S4. The stamping assembly switches to another set of upper dies (35) to the working station below the stamping machine (3); S5. The stamping machine (3) drives the upper mold (35) to move downward, and cooperates with the second lower mold (37) to complete the secondary stamping of the waste material; S6. The finished parts and stamping waste are transported to the corresponding collection box (8) by the feeding component.

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